in pathconf, -1, not 0, means unsupported.. syncio presumably works, too.
[musl] / src / conf / fpathconf.c
2011-08-17 Rich Felkerin pathconf, -1, not 0, means unsupported.. syncio...
2011-08-17 Rich Felkerfix bogus pathconf result for file size bits
2011-02-12 Rich Felkerinitial check-in, version 0.5.0